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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
One century of eel growth: Changes and implications
Ecology of Freshwater Fish, Volume 21, No. 3, Year 2012
Notification
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Description
A cooperative effort gathered a large European length-at-age data set (N=45,759, Lat. 36S-61N Long. 10W-27E) for Anguilla anguilla, covering one century. To assess the effect of global warming during the last century and habitat effects on growth, a model was fitted on the data representing the conditions met at the distribution area scale. Two GLMs were designed to predict eel log(GR): one model was fitted to the whole data and the other was fitted to the female data subset. A model selection procedure was applied to select the best predictors among sex, age class, five temperature parameters and six habitat parameters (depth, salinity and four variables related to the position in the catchment). The yearly sum of temperatures above 13°C (TempSUP13), the relative distance within the catchment, sex, age class, salinity class and depth class were finally selected. The best model predicted eel log(GR) with a 64.46% accuracy for the whole data and 66.91% for the female eel data. Growth rate (GR) was greater in habitats close to the sea and in deep habitats. TempSUP13 variable had one of the greatest predictive powers in the model, showing that global warming had affected eel growth during the last century. © 2012 John Wiley & Sons A/S.
Authors & Co-Authors
Daverat, Françoise
France, Paris
Inrae
Beaulaton, Laurent
France, Fontenay-sous-bois
Onema
Poole, Russell
Ireland, Oranmore
Marine Institute Ireland
Lambert, Patrick
France, Paris
Inrae
Wickström, Håkan
Sweden, Drottningholm
Institute of Freshwater Research
Andersson, Jan
Sweden, Gothenburg
Swedish Board of Fisheries
Aprahamian, Miran
United Kingdom, Bristol
Environment Agency
Hizem, Besma
Tunisia, Tunis
University of Carthage, Institut National Des Sciences et Technologies de la Mer
Élie, Pierre
France, Paris
Inrae
Yalçin-Özdilek, Sukran
Turkey, Canakkale
Çanakkale Onsekiz Mart Üniversitesi
Gumus, Aysun
Turkey, Samsun
Ondokuz Mayis Üniversitesi
Statistics
Citations: 64
Authors: 11
Affiliations: 9
Identifiers
Doi:
10.1111/j.1600-0633.2011.00541.x
ISSN:
09066691
e-ISSN:
16000633
Participants Gender
Female